Trustees



(No Model.)

L. GODDU. 4

MAOHINE FOR INSERTING SCREW THREADED. WIRE INTO THE SOLES I OF BOOTS ORSHOES.

No. 478,055. Patented June 28, 1892.

11%: nonms PETERS cm, Puma-Luna, WASHINGTUmh. c.

UNITED STATES PATENT OFFICE.

LOUIS GODDU, OF \VINOHESTER, ASSIGNOR TO JAMES W. BROOKS, OF CAM-BRIDGE, AND FRANK F. STANLEY, OF SWAMPSCOTT, MASSACHUSETTS,

TRUSTEES.

MACHINE FOR INSERTING SCREWJHREADED WIRE INTO THE SOLES F BOOTS ORSHOES.

SPECIFICATION forming part of Letters Patent No. 478,055, dated June 28,1892.

Application filed September 14, 1391. Serial No. 405,663. (No model.)

To all whom it may concern:

Be it known that I, LOUIS GODDU, of Winchester, county of Middlesex,State of Massachusetts, have invented an Improvement in Machines forInserting Screw-Threaded IV i re into Soles of Boots and Shoes, of whichthe following description, in connection with the accompanying drawings,is a specification, like letters and figures on the drawings reprerosenting like parts.

This invention has for its object to improve that class of machinerepresented in United States Patent No. 171,610, dated December 28,1875. The machine described in said patent I 5 has a spindle whichreceives a single-threaded wire, which is fed out through the nose atthe end of the said spindle by gripping and feeding rolls, and the wireis inserted into the I stock resting on a suitable born or support,

the wire while being inserted being rotated,

so that the threads thereon are screwed into the stock. The wire, havingbeen inserted into the sole, is out off flush with the sole,

' leaving a fastening therein. In the machine referred to the spindle isrotated continuously, and the gripping and feeding rolls carried by thespindle at the lower end thereof have imparted to them an intermittingmovement in" the direction to feed the wire from the nose at the end ofthe spindle, they being moved once during each rotation of thecam-shaft. The gripping and feeding rolls referred to derive theirintermitting movements from a cam on a cam-shaft driven from the worm on5 the spindle referred to. In the machine de scribed the spindle ismounted in bearings in a head, and the weight of the wire added to theweight of the head and its parts results in very considerable strainbeing put upon the machine when the head has given to it its rising andfalling and also its lateral vibrating movements, as when the shoe isbeing fed, and because of its weight it has been found impracticable torotate the spindle above a certain speed and do good work.

Owing, however, to the great competition in the manufacture of shoes, itbecame a great desideratum to increase the effective speed of operationof the machine referred to, as

such increase of effectiveness lessens the cost of production ot bootsand shoes thereon. In my attempts to solve this problem and increase theeffectiveness of the particular ma chine under consideration I havefound that the speedof the spindle could not safely be 5 increased, butrather ought to be reduced; but after considerable experiment Idiscovered that the cam-shaft, actuated by the spindie, might be made toactuate not only the grippingand feeding rolls, but the wire-cutting andthe head-lifting and head-vibrating or feeding devices twice during eachcomplete rotation thereof instead of once, as in the patent referred to,and this made it possible to reduce the speed of rotation of thespindle, and yet do nearly double the amount of work. In the embodimentof my invention as herein contained I have provided the cam-shaftreferred to with cams and devices, which, as stated, actuate the wiregripping and feeding rolls, and the wire-cutting devices, and thedevices for lifting the head and Vibrating it laterally to effect theshoe-feeding movement twice where the machine as heretofore made hasmoved them but once. To

' further aid in making the said machine more efficient as to the amountof work produced thereon, I have been able in its changed conditions, tobe described, for the first, to utilize my two-threaded wire,(represented in United States Patent No. 370,136,) the said wire havinga steeper pitch than the single-threaded wire, which has always beenused in said patented machine;

Figure 1 inside elevation represents a suf- '85 ficient portion of amachine embodying my invention to enable the same to be understood. Fig.2 is afront elevation of the parts shown in Fig. 1. Fig. 3 is aleft-hand side elevation of the parts shown in Fig. 1', but go with thespindle rotated about ninety per cent. from its position shown inFig. 1. Figs.

4., 5, 6, and 7 are details of the cams, to be referred to; and Fig. 8is a sectional detail of the spindle, its slide, and attached parts.

The patentreterred to was reissued as N 0. 7,033 April 4, 1876.

The standard 0; the spindle D, through which the threaded wire to beused is fed, it being taken from a suitable spool F the pul- I00 whichthe gear f is mounted; the pawl i, carried by the said. sleeve; theratchet-wheel h, actuated by the said pawl, the said ratchetwheel beingmounted upon a shaft h provided at its opposite end with a pinion jwhich engages an intermediate gear 3'3, which in turn engages a pinionjfast on one end of one of the-gripping and feeding rolls H, havingworm-like teeth to engage the threads of the wire; the bearing-plateHZcontaining the bearings for that one of the grip and feed rolls whichis not rotated positively by the gearing described; the bar m, connectedto the loose collar 0 three-armed lever K, having at one end a roller orother stud; the rod n, resting on the stop 0; the spring 13 andsleeve-nut q; the wiresevering cutters 5, there being in practice twosuch cutters; set-screw 7"; the head E, in

which the spindle D has its bearings and which also has bearings for thecam-shaft S; the arms t, one for each member of the cutter; the

nose D the lever M instrumental in actuating the arms t, carrying thecutters, to cut the wire off close to the surface of the sole; the

vertical rod or pin N, (shown in Fig. 3;) the hollow post N the arm Nprojecting from the post N and provided with a roller or other stud, thehollow sleeve B, the vertical rod U,

the lever V, to which the upper end of the said rod is adjustablyconnected, said lever at its inner end having a roller or other stud,

and the worm-gear G fast on the cam-shaft S and rotated by the worm G,are and may be all. as represented in the said Reissued Patent No.7,033, where, with the exceptions of the letter S used for thecam-shaft, the same.

letters are used to designate the same parts.

In the machine referred to the cam-shaft at each rotation actuates thegripping and feeding wheels but once to effect one feeding movement ofthe threaded wire; but herein I have provided the cam-shaft S with a camA, (see Figs. 1 and 6, the latter figure showing the said camdeveloped,) which has two cam projections 2 3, adapted to act upon andmove the lever K and effect the intermittent movement of the rotatinggripping'aud feeding wheels II twice during each rotation of the saidcam-shaft S, thus feeding through the spindle enough wire for twofastenings instead of one, as heretofore. I have also shaped thecam-groove 4 in the cam P, that it, acting upon the roller or other studcarried by the arm N of the rocking sleeve N will effect the lateralvibration of the head E, twice during each rotation of the cam-shaft S.

Fig. 7 shows the cam R in face View, the said cam having a cam-groove 5,into which enters a roller or other stud on the lever V, so that thatcam moves the leverV twice during each rotation of the cam-shaftS andlifts the head E twice, so as to remove the pressure of the nose andparts above the stock to permit the same to be fed on the horn or otherusual work-support, (not shown,) but which in practice will be as common to said Reissued Patent No.7,033. The cam-shaft S also has its camA, provided at its periphery with two toes 7, each of which during onerotation of the said cam-shaft acts upon a projection 8 at the upper endof the lever M, common to the said reissued patent, and moves the said1ever twice during each rotation of the said cam-shaft to cut off at twodistinct different times the Wire and sever the same close to the stock,thus making two complete fastenings during each rotation of the saidcamshaft.

Having described my invention,what I desire to claim and secure byLetters Patentis In a machine for inserting screw-threaded wire intosoles of boots and shoes, the follow ing instrumentalities, viz: arotating wirecontaining spindle, gripping and feeding rolls carried bysaid spindle and adapted to grip and feed the threaded wirelongitudinally, a cam-shaft, the lever V, a double cam to actuate ittwice during each rotation of the camshaft, the rocking sleeve N adouble cam to rock it twice during each rotation of the camshaft, alever M, and projections 7 '7 to acuate it twice during each rotation ofthe said camshaft, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

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